Hellohi! I've noticed that there are no Waikiki tabs anywhere 
so i thought that i'd start.
I saw a live version of the song...the bass is really easy. 
Anyways...this is basically
what Juanita plays...

[NOTE] the notes in brackets are played for 1/2 a bar while 
those that aren't in brackets are played for the duration of 
a bar. This doesn't apply for the intro since it's relatively 
quick

INTRO RIFF THINGY
A B C D# E F E F

VERSE
(A C) (E F) x 4

PRE CHORUS
G G E F x 2

CHORUS
C F D F x 2

BRIDGE
C C F E
C C F E
D D F G

THE REPEATED "Here Comes September" PART 2 THE END OF THE SONG - OUTRO
Just play D F until the end of the song...
Song ends on C

The song structure is as follows...
Intro, Verse, Pre Chorus, Chorus, Intro, Verse, Pre Chorus, Chorus, 
Bridge, Chorus x 2
Outro bit

So yeah....easy huh? just listen to the song.
If you have any questions or comments email me @
sum1_feedme@hotmail.com